57689856 has 216 divisors, whose sum is σ = 196632800. Its totient is φ = 16257024.

The previous prime is 57689851. The next prime is 57689861. The reversal of 57689856 is 65898675.

It is an interprime number because it is at equal distance from previous prime (57689851) and next prime (57689861).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57689851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790236 + ... + 790308.

Almost surely, 2^57689856 is an apocalyptic number.

57689856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57689856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98316400).

57689856 is an abundant number, since it is smaller than the sum of its proper divisors (138942944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57689856 is an equidigital number, since it uses as much as digits as its factorization.

57689856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 85 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 57689856 is about 7595.3838612673. The cubic root of 57689856 is about 386.3964712973.

The spelling of 57689856 in words is "fifty-seven million, six hundred eighty-nine thousand, eight hundred fifty-six".